Organic Scintillants for Pulse Shape Discriminating Neutron Counters

Journal Article · Fri Jan 01 04:00:00 EST 1960 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.1931253· OSTI ID:4168703

Funsten, H. O.; Cobb, G. C.

Two fluorescence components with differing decay times are exhibited by certain phosphora upon particle bombardment. The ratio of the slow component to the fast one depends on the type of particle causing fluorescence, and this effect csn be used to differentiate between gamma rays and neutrons. A circuit for the extimation of such ratios is described and was found to be useful in detecting fast neutrons in a gamma-ray background. Results are presented for several organic phosphors: atilbene, anthracene, Plastifluor, benzene, deuterobenzene, NE 314, Liquid scintillator No. 3 (active agents are terphenyl and diphenyInexatriene), and NE 202. When used in conjunction with a pulse discriminator circuit, the method yields a neutron to gamma discrimination ratio of 3000 to 1. (D.L.C.)

• Research Organization: Univ. of Virginia, Charlottesville
• Sponsoring Organization: USDOE
• NSA Number: NSA-14-014927
• OSTI ID: 4168703
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 5 Vol. 31; ISSN 0034-6748; ISSN RSINAK
• Publisher: American Institute of Physics (AIP)
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ALKENES
ANTHRACENE
BACKGROUND
BENZENE
CIRCUITS
DEUTERIUM COMPOUNDS
DISCRIMINATORS
ENGINEERING AND EQUIPMENT
FAST NEUTRONS
GAMMA RADIATION
NEUTRON DETECTION
NEUTRONS
PHENYL RADICALS
PHOSPHORS
POLYMERS
PULSE ANALYZERS
RESOLUTION
SCINTILLATION COUNTERS
SCINTILLATIONS
SENSITIVITY
STILBENE